CVE-2026-42210

Description

Webmin is a web-based system administration tool for Unix-like servers. Prior to version 2.640, for Webmin accounts that require a second authentication factor (typically TOTP), an attacker with knowledge of the username and password can bypass the 2FA requirement by using Basic authentication. Webmin is a web-based system administration tool for Unix-like servers. As a workaround, apply the patch from commit da18a16c84ae5c0b78cad79609cb0efb174000ec manually.

References

• https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec
• https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv